CN102739499B - A kind of method for routing of signaling message, Apparatus and system - Google Patents
A kind of method for routing of signaling message, Apparatus and system Download PDFInfo
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Abstract
The invention discloses a kind of method for routing of signaling message, Apparatus and system, comprising: the signaling message that the S-CSCF that the whole network centralized traffic server in IMS network receives master home sends; And the called party information of carrying in based on this signaling message is determined called after the registration of this locality, the whole network centralized traffic server determines called registered ownership S-CSCF according to the called log-on message in this locality; And by this signaling message route to the ownership S-CSCF determined.The scheme adopting the embodiment of the present invention to provide, decreases the processing links of signaling message route in IMS network, thus decreases the connecting time of signaling message, and decrease processing load and the access bandwidth of the whole network centralized traffic server.
Description
Technical field
The present invention relates to IP Multimedia System (IMS, IP Multimedia Subsystem) technical field, particularly relate to a kind of method for routing of signaling message, Apparatus and system.
Background technology
IMS technology is introduced by 3GPP R5, is the general-purpose platform towards multimedia application, at present method for routing in the ims network, the standard route flow process using 3GPP TS 24.229 to define, as shown in Figure 1, for the route of call request signaling, specifically comprise the steps:
S101, caller make a call, and call request are sent to by communication network the proxy call conversation control function entity P-CSCF that caller registers.
The P-CSCF that S102, caller are registered is according to caller information, the path of the signaling message of this caller of route of preserving when determining that this caller is registered, namely determine the service call session control function entity S-CSCF of master home, and this call request is routed to the S-CSCF of master home.
The S-CSCF of S103, master home is after receiving this call request, IFC data are triggered according to the inceptive filtering that caller is signing, when determining to need corresponding caller to carry out business logic processing to its signing business, by call request triggers to the whole network centralized traffic server in IMS network, and routing iinformation is added in this call request, be used to indicate the down hop routing address after call request being routed to the whole network centralized traffic server, this address can be the address of the S-CSCF self of master home.
After S104, the whole network centralized traffic server receive this call request, based on the caller information carried in call request, such as caller identification information, when registering on the whole network centralized traffic server with the user profile stored and user the corresponding relation of business of contracting, determine this caller the business of contracting, and carry out corresponding business logic processing.And obtain the down hop routing address carried in call request, call request is routed to entity corresponding to down hop routing address, as route returns the S-CSCF of master home according to this down hop routing address obtained.
The S-CSCF of S105, master home is after receiving the call request that route returns, based on the called party information of carrying in call request, to ENUM/DNS (Telephone Number Mapping, telephone number mapping/Domain Name System, domain name system) send corresponding inquiry request, for inquiring about the IMS network entry address at called place, i.e. the address of the query call conversation control function entity I-CSCF of called place network.
S106, ENUM/DNS are based on the called party information of carrying in the inquiry request received, the mapping relations of searching user's information and IMS network entry address, user place, determine IMS network entry address, called place, the i.e. I-CSCF address of called place network, and the S-CSCF I-CSCF address of the called place network determined being returned to master home.
The address of the I-CSCF of the called place network that the S-CSCF of S107, master home returns according to ENUM/DNS, routes to the I-CSCF of called place network by call request.
After the I-CSCF of S108, called place network receives this call request, based on the called party information of carrying in call request, to HSS (the Home Subscriber Server of called place network, home subscriber server) send inquiry request, for inquiring about the address of the S-CSCF of called ownership.
S109, HSS are based on the called party information of carrying in the inquiry request received, and the corresponding relation of the S-CSCF of searching user's information and user attaching, determines the address of the S-CSCF of called ownership, and the address of the S-CSCF of the called ownership determined is returned to I-CSCF.
The address of the S-CSCF of the called ownership that the I-CSCF of S110, called place network returns according to HSS, routes to the S-CSCF of called ownership by call request.
The S-CSCF of S111, called ownership is after receiving this call request, based on called signing IFC data, when determining to need corresponding called business of contracting to it to carry out business logic processing, by call request triggers to the whole network centralized traffic server, and routing iinformation is added in this call request, be used to indicate the down hop routing address after call request being routed to the whole network centralized traffic server, this address can be the address of the S-CSCF self of called ownership.
After S112, the whole network centralized traffic server receive this call request, based on the called party information of carrying in call request, such as called identification information, determines this called contracted business, and carries out corresponding business logic processing.And obtain the down hop routing address carried in call request, call request is routed to entity corresponding to down hop routing address, as route returns the S-CSCF of called ownership according to this down hop routing address obtained.
The S-CSCF of S113, called ownership, after receiving the call request that route returns, based on the called party information of carrying in call request, determines called registered P-CSCF.
Call request is sent to called by communication network by S114, called registered P-CSCF.
In the route flow process of above-mentioned call request, call request need through calling and called multiple network elements in the ims network, from initiating a call to called receiving, need, through 14 routes and 10 network elements, to make processing links many, thus cause connecting time very long.
Summary of the invention
The embodiment of the present invention provides a kind of method for routing, Apparatus and system of signaling message, in order to solve the long problem of the connecting time too much caused due to the processing links of signaling message route in IMS network that exists in prior art.
The embodiment of the present invention provides a kind of method for routing of signaling message, comprising:
The signaling message that the service call session control function entity S-CSCF that the whole network centralized traffic server in IP Multimedia System IMS network receives master home sends; And
The called party information of carrying in based on described signaling message is determined called after the registration of this locality, and described the whole network centralized traffic server determines called registered ownership S-CSCF according to the described called log-on message in this locality; And
By described signaling message route to the ownership S-CSCF determined.
The embodiment of the present invention also provides a kind of route device of signaling message, comprising:
Receiving element, the signaling message that the service call session control function entity S-CSCF for receiving master home sends;
Processing unit, the called party information for carrying in based on described signaling message is determined called after the registration of this locality, determines called registered ownership S-CSCF according to the described called log-on message in this locality;
Routing unit, for by described signaling message route to the ownership S-CSCF determined.
The embodiment of the present invention also provides a kind of route system of signaling message, comprising: the service call session control function entity S-CSCF of master home, the whole network centralized traffic server in IP Multimedia System IMS network, and the S-CSCF of called ownership, wherein:
The S-CSCF of described master home, for sending signaling message to described the whole network centralized traffic server;
Described the whole network centralized traffic server, the called party information for carrying in the described signaling message based on reception is determined called after the registration of this locality, determines the S-CSCF of called registered called ownership according to the described called log-on message in this locality; And by described signaling message route to the S-CSCF of the described called ownership determined;
The S-CSCF of described called ownership, for receiving described signaling message.
In the method that the embodiment of the present invention provides, the whole network centralized traffic server is after receiving the signaling message of S-CSCF transmission of master home, no longer the S-CSCF this signaling message route being returned master home, and then the network at called place is routed to by the S-CSCF of master home, but the whole network centralized traffic server directly determine called this locality registration after, determine the S-CSCF of called ownership, and signaling message is routed directly to the S-CSCF of determined called ownership.The route flow process of middle signaling message compared to existing technology, avoid the handling process in entry address signaling message route being inquired about called place network to the S-CSCF of master home before the network of called place to ENUM/DNS, the S-CSCF of master home by signaling message route to the flow process of the I-CSCF of called place network, and the I-CSCF of follow-up called place network inquires about the flow process of the address of the S-CSCF of called ownership to HSS, therefore, adopt the scheme that the embodiment of the present invention provides, decrease the processing links of signaling message route in IMS network, thus decrease the connecting time of signaling message.And need compared to existing technology twice signaling message to be triggered to the whole network centralized traffic server, in the method that the embodiment of the present invention provides, only need triggering the whole network centralized traffic server.Therefore the processing load of the whole network centralized traffic server can be reduced preferably.
Accompanying drawing explanation
Fig. 1 is the flow chart of call request route in IMS network in prior art;
The flow chart of the method for routing of the signaling message that Fig. 2 provides for the embodiment of the present invention;
The call request that Fig. 3 A provides for the embodiment of the present invention 1 is at the flow chart of Calling Side route;
The call request that Fig. 3 B provides for the embodiment of the present invention 1 is at the flow chart of callee side route;
The schematic diagram of the call request route that Fig. 4 provides for the embodiment of the present invention 1;
The structural representation of the route device of the signaling message that Fig. 5 provides for the embodiment of the present invention 2;
The structural representation of the route system of the signaling message that Fig. 6 provides for the embodiment of the present invention 3.
Embodiment
In order to provide the processing links reducing signaling message route in IMS network, thus reduce the implementation of the connecting time of signaling message, embodiments provide a kind of method for routing of signaling message, Apparatus and system, below in conjunction with Figure of description, the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein, only for instruction and explanation of the present invention, is not intended to limit the present invention.And when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
The embodiment of the present invention provides a kind of method for routing of signaling message, as shown in Figure 2, comprising:
The signaling message that the S-CSCF that the whole network centralized traffic server in step S201, IMS network receives master home sends.
Step S202, the called party information of carrying in based on this signaling message are determined called after the registration of this locality, and the whole network centralized traffic server determines called registered ownership S-CSCF according to the called log-on message in this locality.
Step S203, by this signaling message route to the S-CSCF of the called ownership determined.
In the embodiment of the present invention, signaling message can be any signaling message in IMS network between calling and called, as SIP signaling message, because instant message is by SIP signaling bear, so also include the SIP signaling message of carrying instant message.
Below in conjunction with accompanying drawing, for the route of call request between calling and called, method provided by the invention and device and corresponding system are described in detail.
Embodiment 1:
The call request that Fig. 3 A provides for the embodiment of the present invention 1, at the flow chart of Calling Side route, specifically comprises the steps:
Step S301, caller make a call, and call request is sent to the P-CSCF that caller registers, specifically can passes through mobile communications network, WLAN or wired internet by communication network.
The P-CSCF that step S302, caller are registered is according to caller information, and the path of the signaling message of this caller of route of preserving when determining that this caller is registered, namely determines the S-CSCF of master home, and this call request is routed to the S-CSCF of master home.
The S-CSCF of step S303, master home is after receiving this call request, IFC data are triggered according to the inceptive filtering that caller is signing, when determining to need corresponding caller to carry out business logic processing to its signing business, by call request triggers to the whole network centralized traffic server in IMS network.
In this step, if reduce the change to existing routing protocol as far as possible, the S-CSCF of master home can adopt the processing scheme identical with prior art, namely in this call request, routing iinformation is added, be used to indicate the down hop routing address after call request being routed to the whole network centralized traffic server, this address can be the address of the S-CSCF self of master home.
In this step, the S-CSCF of master home also can not add routing iinformation in this call request, directly call request is routed to the whole network centralized traffic server.
After step S304, the whole network centralized traffic server receive this call request, based on the caller information carried in call request, such as caller identification information, when registering on the whole network centralized traffic server with the user profile stored and user the corresponding relation of business of contracting, determine this caller the business of contracting, and carry out the business logic processing of corresponding caller.
The call request that Fig. 3 B provides for the embodiment of the present invention 1, at the flow chart of callee side route, specifically comprises the steps:
In step S304, the embodiment of the present invention 1, the whole network centralized traffic server also will determine called whether registration in this locality based on the called party information of carrying in this call request, such as according to called identification information, in the identification information of the registered users of this locality preservation, inquire about whether there is this called identification information, if existed, represent called to register on the whole network centralized traffic server, then according to the called log-on message in this locality, determine the S-CSCF of registered called ownership, and this call request is routed to the S-CSCF of the called ownership determined.
If in above-mentioned steps S303, the S-CSCF of master home with the addition of routing iinformation in this call request, when namely with the addition of the down hop routing address of this call request, the whole network centralized traffic server is then no longer according to this this call request of down hop routing address route, but ignore the instruction of this routing iinformation, and from call request, delete this down hop routing address.
In this step, the whole network centralized traffic server, before S-CSCF call request being routed to called ownership, also based on the called party information of carrying in call request, determines this called contracted business, and carries out corresponding called business logic processing.
If do not register on the whole network centralized traffic server called, then this call request route can be returned the S-CSCF of master home by the whole network centralized traffic server.
Do not register on the whole network centralized traffic server if called, and when carrying the down hop routing address of this call request in this call request, the whole network centralized traffic server according to this this call request of down hop routing address route, as its route returned the S-CSCF of master home.
The S-CSCF of step S305, called ownership, after receiving this call request, based on the called party information of carrying in call request, determines called registered P-CSCF.
Call request is sent to called by communication network by step S306, called registered P-CSCF.
Adopt above-mentioned Fig. 3 A and the call request route flow process shown in Fig. 3 B, its schematic diagram as shown in Figure 4, therefrom visible, call request route flow process compared to existing technology, in route flow process in the present embodiment 1, when called register on the whole network centralized traffic server time, the whole network centralized traffic server is after the call request of S-CSCF transmission receiving master home, no longer the S-CSCF this call request route being returned master home, and then the network at called place is routed to by the S-CSCF of master home, but be routed directly to the S-CSCF of determined called ownership, namely the handling process in entry address signaling message route being inquired about called place network to the S-CSCF of master home before the network of called place to ENUM/DNS is avoided, the S-CSCF of master home by signaling message route to the flow process of the I-CSCF of called place network, and the I-CSCF of follow-up called place network inquires about the flow process of the address of the S-CSCF of called ownership to HSS, and then decrease the processing links of call request route, requirements of process shown in Fig. 1 is through 14 routes and 10 network elements, and only need through 6 routes and 5 network elements in embodiment 1 scheme, because this reducing the connecting time of call request.
And, need compared to existing technology twice signaling message to be triggered to the whole network centralized traffic server, triggering the whole network centralized traffic server is only needed in the method that the embodiment of the present invention provides, while raising continues efficiency, also reduce processing load and the access bandwidth of the whole network centralized traffic server.
Embodiment 2:
Based on same inventive concept, according to the method for routing of the signaling message that the above embodiment of the present invention provides, correspondingly, the embodiment of the present invention 2 additionally provides a kind of route device of signaling message, the whole network centralized traffic server in this device and IMS network, its structural representation as shown in Figure 5, specifically comprises:
Receiving element 501, the signaling message that the S-CSCF for receiving master home sends;
Processing unit 502, the called party information for carrying in based on described signaling message is determined called after the registration of this locality, determines called registered ownership S-CSCF according to the described called log-on message in this locality;
Routing unit 503, for by described signaling message route to the ownership S-CSCF determined.
Preferably, routing unit 503, the called party information also for carrying in based on described signaling message is determined called when not registering in this locality, described signaling message route is returned the S-CSCF of master home.
Preferably, processing unit 502, called party information also for carrying in based on described signaling message is determined called after the registration of this locality, when carrying the down hop routing address of described signaling message in described signaling message, deletes described down hop routing address from described signaling message.
Preferably, routing unit 503, also for called not in this locality registration when determining based on the called party information of carrying in described signaling message, and when carrying the down hop routing address of described signaling message in described signaling message, according to signaling message described in described down hop routing address route.
Embodiment 3:
Based on same inventive concept, according to the method for routing of the signaling message that the above embodiment of the present invention provides, correspondingly, the embodiment of the present invention 3 additionally provides a kind of route system of signaling message, its structural representation as shown in Figure 6, specifically comprises: the S-CSCF 601 of master home, the whole network centralized traffic server 602 in IMS network, and the S-CSCF 603 of called ownership, wherein:
The S-CSCF 601 of master home, for sending signaling message to the whole network centralized traffic server 602;
The whole network centralized traffic server 602, the called party information for carrying in the described signaling message based on reception is determined called after the registration of this locality, determines the S-CSCF 603 of called registered called ownership according to the described called log-on message in this locality; And by described signaling message route to the S-CSCF 603 of the called ownership determined;
The S-CSCF 603 of called ownership, for receiving described signaling message.
Preferably, the whole network centralized traffic server 602, the called party information also for carrying in based on described signaling message is determined called when not registering in this locality, described signaling message route is returned the S-CSCF 601 of master home.
Preferably, the whole network centralized traffic server 602, called party information also for carrying in based on described signaling message is determined called after the registration of this locality, when carrying the down hop routing address of described signaling message in described signaling message, from described signaling message, delete described down hop routing address.
Preferably, the whole network centralized traffic server 602, also for when determining calledly not register in this locality based on the called party information of carrying in described signaling message, and when carrying the down hop routing address of described signaling message in described signaling message, according to signaling message described in described down hop routing address route.
In sum, the scheme that the embodiment of the present invention provides, comprising: the signaling message that the S-CSCF that the whole network centralized traffic server in IMS network receives master home sends; And the called party information of carrying in based on this signaling message is determined called after the registration of this locality, the whole network centralized traffic server determines called registered ownership S-CSCF according to the called log-on message in this locality; And by this signaling message route to the ownership S-CSCF determined.The scheme adopting the embodiment of the present invention to provide, decreases the processing links of signaling message route in IMS network, thus decreases the connecting time of signaling message, and decrease processing load and the access bandwidth of the whole network centralized traffic server.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a method for routing for signaling message, is characterized in that, comprising:
The signaling message that the service call session control function entity S-CSCF that the whole network centralized traffic server in IP Multimedia System IMS network receives master home sends; And
The called party information of carrying in based on described signaling message is determined called after the registration of this locality, and described the whole network centralized traffic server determines called registered ownership S-CSCF according to the described called log-on message in this locality; And
Described signaling message is routed directly to the ownership S-CSCF determined.
2. the method for claim 1, is characterized in that, also comprises:
The called party information of carrying in based on described signaling message is determined called when not registering in this locality, and described signaling message route is returned the S-CSCF of master home by described the whole network centralized traffic server.
3. the method for claim 1, is characterized in that, the called party information of carrying in based on described signaling message is determined called after the registration of this locality, also comprises:
When carrying the down hop routing address of described signaling message in described signaling message, described the whole network centralized traffic server deletes described down hop routing address from described signaling message.
4. method as claimed in claim 3, is characterized in that, also comprise:
The called party information of carrying in based on described signaling message is determined calledly not register in this locality, and when carrying the down hop routing address of described signaling message in described signaling message, described the whole network centralized traffic server is according to signaling message described in described down hop routing address route.
5. a route device for signaling message, is characterized in that, comprising:
Receiving element, the signaling message that the service call session control function entity S-CSCF for receiving master home sends;
Processing unit, the called party information for carrying in based on described signaling message is determined called after the registration of this locality, determines called registered ownership S-CSCF according to the described called log-on message in this locality;
Routing unit, for being routed directly to the ownership S-CSCF determined by described signaling message.
6. device as claimed in claim 5, is characterized in that, described routing unit, and the called party information also for carrying in based on described signaling message is determined called when not registering in this locality, described signaling message route is returned the S-CSCF of master home.
7. device as claimed in claim 5, it is characterized in that, described processing unit, called party information also for carrying in based on described signaling message is determined called after the registration of this locality, when carrying the down hop routing address of described signaling message in described signaling message, from described signaling message, delete described down hop routing address.
8. device as claimed in claim 7, it is characterized in that, described routing unit, also for when determining calledly not register in this locality based on the called party information of carrying in described signaling message, and when carrying the down hop routing address of described signaling message in described signaling message, according to signaling message described in described down hop routing address route.
9. a route system for signaling message, is characterized in that, comprising: the service call session control function entity S-CSCF of master home, the whole network centralized traffic server in IP Multimedia System IMS network, and the S-CSCF of called ownership, wherein:
The S-CSCF of described master home, for sending signaling message to described the whole network centralized traffic server;
Described the whole network centralized traffic server, the called party information for carrying in the described signaling message based on reception is determined called after the registration of this locality, determines the S-CSCF of called registered called ownership according to the described called log-on message in this locality; And described signaling message is routed directly to the S-CSCF of the described called ownership determined;
The S-CSCF of described called ownership, for receiving described signaling message.
10. system as claimed in claim 9, it is characterized in that, described the whole network centralized traffic server, called party information also for carrying in based on described signaling message is determined called after the registration of this locality, when carrying the down hop routing address of described signaling message in described signaling message, from described signaling message, delete described down hop routing address.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1881975A (en) * | 2005-09-05 | 2006-12-20 | 华为技术有限公司 | Method for calling user terminal of IP multimedia subsystem |
| CN101043526A (en) * | 2007-04-30 | 2007-09-26 | 华为技术有限公司 | Method, apparatus and system for processing message in IMS network |
| CN101184260A (en) * | 2007-10-30 | 2008-05-21 | 中兴通讯股份有限公司 | Method to implement calling name display in the next generation network |
| CN101686440A (en) * | 2008-09-24 | 2010-03-31 | 华为技术有限公司 | Method, device and system of session control |
-
2011
- 2011-03-31 CN CN201110080844.8A patent/CN102739499B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1881975A (en) * | 2005-09-05 | 2006-12-20 | 华为技术有限公司 | Method for calling user terminal of IP multimedia subsystem |
| CN101043526A (en) * | 2007-04-30 | 2007-09-26 | 华为技术有限公司 | Method, apparatus and system for processing message in IMS network |
| CN101184260A (en) * | 2007-10-30 | 2008-05-21 | 中兴通讯股份有限公司 | Method to implement calling name display in the next generation network |
| CN101686440A (en) * | 2008-09-24 | 2010-03-31 | 华为技术有限公司 | Method, device and system of session control |
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